Double-edging machine



(No Mgael'.) Y

C. B. WESSELL.

DOUBLE EDGING MAGHINE- No. 511,312.- Patented Dec. 19 1893.

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UNTTED STATES PATENT QEETCE.

CHARLES R. wESSELL, OE DENVER, COLORADO, ASSICNOR OE ONE-THIRD ToALEXANDER MeDoNALD, OE BOYD, WISCONSIN.

DOUBLE-EDGING MACHINE.

SPECIFICATION forming part of Letters Patent No. 511,312, dated December19, 1893.

Application tiled February 6, 1893. Serial-NOAGLZQE, (No model.)

To a/ZZ whom t may concern.- V

Be it known that I, CHARLES B. WESSELL, a citizen of the United Statesof America, residing at Denver, in the county of Arapahoe and State ofColorado, have invented certain new and useful Improvements inDouble-Edging Machines; and I do declare the following to be a full,clear, and exact description of the invention7 such as will enableothers skilled in the art to which it appcrtains to make and use thesame, reference being had to the accompanying drawings, and to thefigures of reference marked thereon, which form a part of thisspecification.

My invention relates to improvements in machines for turning what iscalled a double edge upon the extremities of sheet metal pipe sections.It is employed in preparing the sections of furnace and other similarpipes for connection. The double edge is formed only on one extremity ofeach section, the other extremity having a single edge adapted toconnect with the double edge of the opposite section.

My improved machine consists of the features, arrangements andcombinations hereinafter described and claimed, all of which will befully understood by reference to the accompanying drawingsin which isillustrated an embodiment thereof.

In the drawings, Figure 1 is a side elevation of the machine, thesupporting leg being partly broken away. Fig. 2 is a similar view, theouter casing being removed to show the mechanism within. Fig. 3 is anend View of the same. Fig. 4 is an enlarged detail View of the diskswhich form the double edge, the same being shown in operative relation.Figs. 5, 6 and 7 illustrate the use of the machine, two pipe sectionsbeing shown in the three different Stages of forming the joint.

Similar reference characters indicate corresponding parts or elements ofthe mechanism in the several views.

Let the numeral 5 designate the framework in which are journaled the twoshafts 6 and 7 carrying the meshing gear wheels 8 and 9. To oneextremity of the shaft 6 is attached the crank 10 for actuating theshafts. The extremity of shaft 6 opposite that to which the crank isattached, is provided with a disk l2, the edge of which is grooved toreceive the counter-part projecting edge of another disk I3 made fast tothe corresponding extremity of shaft 7, and carrying the verticalcircumferential flange 13a. The shaft 6 carries the hub or sleeve 6aengaging the inner face of the disk. In the frame 5 is also journaledthe screw shaft l5 carrying a hand wheel l5a at one extremity and a gageplate I5c at the Opposite extremity. This gage plate is curved to engagethe hub G of the shaft.

In using the machine one extremity of the pipe is slipped over the disk12 and pressed against the gage plate, the disks being first separatedsufdcie'ntly to permit this bythe use of the vertical screw shaft I6bearing against the vertically movable box 17 in which shaft 7 isjournaled. This box rests upon a coil spring I8. The opposite extremityof this spring engages the block 19 bearing upon shaft 6. Shaft 16 isprovided with a crank arm 16a. Hence as shaft I6 is raised the disk I3is made to move away from disk I2 since spring 1S is under tension whenthe two disks engage. After the extremity of the pipe section is placedin position shaft 16 isscrewed down causing disk 13 to engage the outersurface of the pipe section while disk 12 engages its inner surface.Then as the shafts 6 and 7 are rotated by turning the crank I0, theextremity of the pipe section is fashioned as shown at 2O in Fig. 5,forming the exteriorly projecting edge 2Oa and the iuteriorly projecting edge 20C. This double edged extremity of the pipe is adapted toreceive the flange 21 formed on the opposite pipe section. The next twosteps in completing the joint are illustrated in Figs. 6 and 7, but withthese steps my improved machine has nothing to do. They are, however,illustrated to make clear the object of the initial step in forming thedouble edge on the pipe section. After the double edge is formed theflange 2l of the opposite section is pressed or forced into place asshownin Fig. 5.

I'Ieretofore, so far as I am aware, two machines have been employed toform this double edge, thus greatly increasing the time and labornecessary to accomplish the result IOO sought, as compared with myimproved machine, which completes the work at a single operation.

Having thus described my invention, what I claim is- The combinationwith a suitable frame of two shafts journaled therein, one above theother, and carrying meshing gears, the lower shaft being provided at oneextremity with an enlarged hub and a disk having a V-shaped groovedperiphery, the upper shaft having a disk with a V-shaped projectingperiphery adapted to enter the counterpart groove of the disk on thelower shaft, the upper disk being also provided with a vertical flangeadapted to engage the hub of the lower shaft in close proximity to thedisk, and a screw CHARLES B. WESSELL.

lVitnesses:

WM. MCCONNELL, H. KNIGHT.

